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Cesium carbonate → (4S,5S)-4-(((tert-Butyldiphenylsilyl)oxy)methyl)-3-(6-chloro-2-morpholinopyrimidin-4-yl)-5-(4-methoxyphenyl)oxazolidin-2-one

HRID 929956
ノート
印刷プレビュー

反応式

HRID 929956 の反応式
[Si:1]([O:18][CH2:19][C@H:20]1[C@H:24]([C:25]2[CH:30]=[CH:29][C:28]([O:31][CH3:32])=[CH:27][CH:26]=2)[O:23][C:22](=[O:33])[NH:21]1)([C:14]([CH3:17])([CH3:16])[CH3:15])([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[Cl:34][C:35]1[CH:40]=[C:39](Cl)[N:38]=[C:37]([N:42]2[CH2:47][CH2:46][O:45][CH2:44][CH2:43]2)[N:36]=1.C([O-])([O-])=O.[Cs+].[Cs+].C([O-])(O)=O.[Na+]>O1CCOCC1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C1(P(C2C=CC=CC=2)C2C3OC4C(=CC=CC=4P(C4C=CC=CC=4)C4C=CC=CC=4)C(C)(C)C=3C=CC=2)C=CC=CC=1.[Ar]>[Si:1]([O:18][CH2:19][C@H:20]1[C@H:24]([C:25]2[CH:26]=[CH:27][C:28]([O:31][CH3:32])=[CH:29][CH:30]=2)[O:23][C:22](=[O:33])[N:21]1[C:39]1[CH:40]=[C:35]([Cl:34])[N:36]=[C:37]([N:42]2[CH2:47][CH2:46][O:45][CH2:44][CH2:43]2)[N:38]=1)([C:14]([CH3:17])([CH3:16])[CH3:15])([C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1)[C:8]1[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

8

反応物 4

HCID 10796Cesium carbonateHCID 516892Sodium BicarbonateHCID 27720684-(4,6-Dichloropyrimidin-2-yl)morpholineHCID 86718527(4S,5S)-4-(((tert-Butyldiphenylsilyl)oxy)methyl)-5-(4-methoxyphenyl)oxazolidin-2-one

生成物 1

HCID 86718539(4S,5S)-4-(((tert-Butyldiphenylsilyl)oxy)methyl)-3-(6-chloro-2-morpholinopyrimidin-4-yl)-5-(4-methoxyphenyl)oxazolidin-2-one
収率 99%

試薬・触媒・溶媒 3

HCID 9811564Bis(dibenzylideneacetone)palladium触媒HCID 86694355Argon 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene触媒HCID 312751,4-Dioxane溶媒

反応条件

温度
100 °C

実験手順

To a solution of (4S,5S)-4-(((tert-butyldiphenylsilyl)oxy)methyl)-5-(4-methoxyphenyl)-oxazolidin-2-one (1.65 g, 3.57 mmol), 4-(4,6-dichloropyrimidin-2-yl)morpholine (920 mg, 3.93 mmol) and Cs2CO3 (1.75 g, 5.36 mmol) in dioxane (20 mL) was added after purging with argon 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (145 mg, 250 μmol) and Pd2(dba)3 (65 mg, 0.071 mmol), and the reaction mixture was heated for 5 h at 100° C. The reaction mixture was added to 10% aqueous NaHCO3 solution and extracted with EtOAc. Combined extracts were washed with brine, dried over MgSO4, filtered and concentrated. The residue was purified by column chromatography using EtOAc in heptane from 0% to 50% in order to give the title compound as a white solid (2.33 g, 94%). TLC (heptane/EtOAc 1:1) Rf=0.52; LC-MS: [M+H] 659,661; Rt 1.58 min; (LCMS method 2). 1H NMR (400 MHz, CDCl3): 7.64 (m, 4H), 7.54 (s, 1H), 7.55-7.35 (m, 6H), 7.26 (m, 2H), 6.95 (d, 2H), 5.21 (d, 1H), 4.56 (m, 1H), 4.22 (dd, 1H), 3.96 (dd, 1H), 3.84 (s, 3H), 3.60-3.40 (m, 8H), 1.09 (s, 9H).

後処理

  1. extractionextracted with EtOAc
  2. washCombined extracts were washed with brine
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe residue was purified by column chromatography

出典と根拠

ORDレコード
ord-c08dd7d65a58423082a34b704d5212a3
出典データセット
uspto-grants-2016_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09296733B2

反応ノート

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